EP0869332A3 - Vorrichtung und Verfahren zum Auswerten eines Sensor-Spannungssignals - Google Patents

Vorrichtung und Verfahren zum Auswerten eines Sensor-Spannungssignals Download PDF

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Publication number
EP0869332A3
EP0869332A3 EP98106054A EP98106054A EP0869332A3 EP 0869332 A3 EP0869332 A3 EP 0869332A3 EP 98106054 A EP98106054 A EP 98106054A EP 98106054 A EP98106054 A EP 98106054A EP 0869332 A3 EP0869332 A3 EP 0869332A3
Authority
EP
European Patent Office
Prior art keywords
signal
voltage
voltage signal
sensor
designed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP98106054A
Other languages
English (en)
French (fr)
Other versions
EP0869332A2 (de
EP0869332B1 (de
Inventor
Helmut Dipl.-Ing. Tetling
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Steinel GmbH and Co KG
Original Assignee
Steinel GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Steinel GmbH and Co KG filed Critical Steinel GmbH and Co KG
Publication of EP0869332A2 publication Critical patent/EP0869332A2/de
Publication of EP0869332A3 publication Critical patent/EP0869332A3/de
Application granted granted Critical
Publication of EP0869332B1 publication Critical patent/EP0869332B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
    • G01D3/028—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure
    • G01D3/032—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure affecting incoming signal, e.g. by averaging; gating undesired signals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/44—Electric circuits

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Analogue/Digital Conversion (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

Die Erfindung betrifft eine Vorrichtung zum Auswerten eines Sensor-Spannungssignals (US), das eine einer Gleichspannungskomponente (USDC) überlagerte, relativ zu dieser kleine Nutzsignalamplitude (USAC) aufweist, mit einer zum Erfassen des Sensor-Spannungssignals und zum Erzeugen eines von der Nutzsignalamplitude (USAC) abhängigen, digitalen Steuersignals eingerichteten Wandlerelektronik, wobei die Vorrichtung aufweist: Einen zum Vergleichen des Sensor-Spannungssignals mit einem Referenzsignal (UR) verschalteten Komparator (12), einen Spannungsgenerator (20), der zum gesteuerten Ausgeben eines Spannungssignals (UG) auf diskretem Pegel ausgebildet und mit einem eine erste Zeitkonstante (τ) aufweisenden Ladungsspeicher (22, 24) zum Erzeugen des Referenzsignals (UR) verbunden ist, eine Steuereinheit (28), die zum Ansteuern des Spannungsgenerators (20) dergestalt ausgebildet ist, daß dieser mit einer gegenüber der ersten Zeitkonstante (τ) kurzen Wiederholfrequenz (te) periodisch zwischen zwei Spannungsstufen umschaltet, und einer zum getakteten Erfassen einer Mehrzahl von Komparator-Ausgangssignalen eingerichteten Auswerteinheit (16), die als Reaktion auf die erfaßten Ausgangssignale das digitale Steuersignal erzeugt.
EP98106054A 1997-04-02 1998-04-02 Vorrichtung und Verfahren zum Auswerten eines Sensor-Spannungssignals Expired - Lifetime EP0869332B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19713552 1997-04-02
DE19713552 1997-04-02

Publications (3)

Publication Number Publication Date
EP0869332A2 EP0869332A2 (de) 1998-10-07
EP0869332A3 true EP0869332A3 (de) 1999-01-27
EP0869332B1 EP0869332B1 (de) 2003-05-21

Family

ID=7825200

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98106054A Expired - Lifetime EP0869332B1 (de) 1997-04-02 1998-04-02 Vorrichtung und Verfahren zum Auswerten eines Sensor-Spannungssignals

Country Status (3)

Country Link
EP (1) EP0869332B1 (de)
AT (1) ATE241126T1 (de)
DE (2) DE59808405D1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19905071A1 (de) * 1999-02-08 2000-08-10 Siemens Ag Meßumformer sowie Verfahren zur Diagnose der Versorgung eines Meßumformers
DE102006044008A1 (de) * 2006-09-19 2008-03-27 Conti Temic Microelectronic Gmbh Schaltungsanordnung zur Spannungsprüfung an einem Schaltungspunkt mit einem Mikrocontroller

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2169720A (en) * 1985-01-10 1986-07-16 Brownell Limited Detecting rate of change of signals
JPH085397A (ja) * 1994-06-16 1996-01-12 Sony Corp 検出センサのオフセットキャンセル装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2169720A (en) * 1985-01-10 1986-07-16 Brownell Limited Detecting rate of change of signals
JPH085397A (ja) * 1994-06-16 1996-01-12 Sony Corp 検出センサのオフセットキャンセル装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 096, no. 005 31 May 1996 (1996-05-31) *

Also Published As

Publication number Publication date
EP0869332A2 (de) 1998-10-07
DE59808405D1 (de) 2003-06-26
ATE241126T1 (de) 2003-06-15
EP0869332B1 (de) 2003-05-21
DE19814734A1 (de) 1999-01-07

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